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Tree peony

ABSTRACT: Paeonia rockii and Paeonia ostii miRNA Raw sequence reads

PROVIDER: PRJNA389254 | ENA |

REPOSITORIES: ENA

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Dataset's files

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			Action	DRS
	SRR5649611.fastq.gz	Fastqsanger.gz
	SRR5649612.fastq.gz	Fastqsanger.gz
	SRR5649613.fastq.gz	Fastqsanger.gz
	SRR5649614.fastq.gz	Fastqsanger.gz
	SRR5649615.fastq.gz	Fastqsanger.gz

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Fatty acid composition of developing tree peony (Paeonia section Moutan DC.) seeds and transcriptome analysis during seed development

Project description:Tree peony (Paeonia ostii section Moutan DC.) is known for its excellent ornamental and medicinal values. In 2011, seeds from P. ostii have been identified as novel resource of alpha-linolenic acid (ALA) for seed oil production and development in China. However, the molecular mechanism on biosynthesis of unsaturated fatty acids in tree peony seeds remains unknown. Therefore, transcriptome data is needed to better understand the underlying mechanisms. In this study, lipids accumulation contents were measured using GC-MS methods across developing tree peony seeds, which exhibited an extraordinary ALA content (49.3%) in P. ostii mature seeds. Transcriptome analysis was performed using Illumina sequencing platform. A total of 144 million 100-bp paired-end reads were generated from six libraries, which identified 175,874 contigs. In the KEGG Orthology enrichment of differentially expressed genes, lipid metabolism pathways were highly represented categories. Using this data we identified 388 unigenes that may be involved in de novo fatty acid and triacylglycerol biosynthesis. In particular, three unigenes (SAD, FAD2 and FAD8) encoding fatty acid desaturase with high expression levels in the fast oil accumulation stage compared with the initial stage of seed development were identified.

2017-03-04 | E-MTAB-3377 | biostudies-arrayexpress

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Project description:Paeonia rockii and Paeonia ostii Raw sequence reads

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Deep sequencing of Paeonia ostii small RNAs in response to copper stress

Project description:We used high-throughput sequencing to identify conserved and nonconserved miRNAs and other short RNAs in Paeonia ostii under control and copper stressed condition. 102 previously known plant miRNAs were identified and classified into 89 families according to their gene sequence identity. Some miRNAs were highly conserved in the plant kingdom suggesting that these miRNA play important and conserved roles. Combined our transcriptome sequencing data of Paeonia ostii under same conditions, 34 novel potential miRNAs were identified. The potential targets of the identified known and novel miRNAs were also predicted based on sequence homology search. Comparing the two libraries, it was observed that 12 conserved miRNAs and 18 novel miRNAs showed significantly changes in response to copper stress. Some of the new identified potential miRNAs might be involved in Paeonia ostii-specific regulating mechanisms under copper stress. These results provide a framework for further analysis of miRNAs and their role in regulating Paeonia ostii response to copper stress.

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Project description:Paeonia rockii and Paeonia ostii miRNAs Raw sequence reads

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Project description:Paeonia ostii Raw sequence reads